I remember some years back a project was started to build a replacement clock with an appeal to collect £75,000 for a replacement clock for the one that was lost during the WWII bombing. I can't remember now, but I think I made a donation at the time, but it was quite a few years back. I wonder if this one you have heard about is the replacement. The idea was to have a replacement built and place it in the indoor market of that time, but that building has gone now. So ideally the best choice would be the new market.